The foundations laid by the Soviets in mass public transport in Moscow in the 60's and 70's outshines the vast majority of US cities in 2024.

The sudden burst of car ownership took a massive toll on roads that were in no way designed for such things. A large portion of the western parts of the Soviet Union experience four distinct seasons, too. Huge swings in temperature between summer and winter as well as moisture levels ranging from not raining for weeks on end to almost flooding. It's no wonder why they turned to shit, esp as the USSR was running low on money.